*{
    margin: 0;
    padding: 0;
}
.mtop{
    background-color: #607D8B;
	width: 100%;
	height:150px;
}
.mtop h3{
    font-size: 25px;
    color: #efefef;
    text-align: center;
    position: relative;
    
}
nav{
	background-color:#607D8B;
	margin-top:4px;
	height:40px;
}
a{
    text-decoration: none;
	font-size: 20px;
	color: #efefef;
	display:inline-block;
	text-align:center;
	margin-left: 30px;
	width: 25%;
	margin:auto 0;
}
